Description

Fenitrothion (O,o-Dimethyl-D6) CAS NO 203645-59-4 is a deuterated isotopologue of the widely used organophosphate insecticide Fenitrothion, where six hydrogen atoms are replaced by deuterium. This compound is a critical analytical standard and internal reference material, enabling precise quantification and metabolic studies of the parent compound in complex matrices. It is essential for researchers and quality control laboratories in the agrochemical, environmental monitoring, and regulatory compliance sectors who require high-fidelity isotopic labeling for mass spectrometry and NMR-based analytical methods.

Application

• Internal Standard for Mass Spectrometry (LC-MS/MS, GC-MS): Primary use for the accurate quantification of Fenitrothion residues in food, water, soil, and biological samples.
• Metabolic Pathway Tracing: Employed in pharmacokinetic and environmental fate studies to track the biotransformation and degradation pathways of Fenitrothion.
• Method Development and Validation: A crucial component for developing, calibrating, and validating sensitive analytical methods in compliance with global regulatory guidelines.
• Quality Control Reference Material: Used by manufacturers of agrochemicals and analytical laboratories to verify the purity and consistency of Fenitrothion technical material and formulations.
• Isotope Dilution Analysis: Enhances accuracy and precision in quantitative analysis by correcting for sample preparation losses and instrument variability.
• Environmental Monitoring: Supports monitoring programs for pesticide pollution and ecological impact assessments.

Basic Information

Product Name	Fenitrothion (O,o-Dimethyl-D6)
CAS No.	203645-59-4
Molecular Formula	C9H6D6NO5PS
Molecular Weight	291.27 g/mol
Synonyms	Fenitrothion-d6; O,O-Dimethyl O-(3-methyl-4-nitrophenyl) phosphorothioate-d6; Phosphorothioic acid, O,O-dimethyl O-(3-methyl-4-nitrophenyl) ester-d6; Accothion-d6; Agrothion-d6; Cyfen-d6; Folithion-d6; Metathion-d6; Sumithion-d6
EINECS	Contact for details

Quality Control

Every batch of Fenitrothion (O,o-Dimethyl-D6) is produced and analyzed under strict quality management protocols. We guarantee high chemical and isotopic purity, verified by advanced spectroscopic and chromatographic techniques. A comprehensive Certificate of Analysis (COA) is provided with each shipment, detailing parameters such as isotopic enrichment, chemical purity, and solvent content. Our quality system is designed to meet the stringent requirements of analytical reference material standards.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place at a controlled room temperature (typically 15-25°C). Keep away from strong alkalis and incompatible organic solvents. For long-term stability, consider storage under inert atmosphere.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid or solid
Identification (IR / NMR)	Conforms to structure
Purity (HPLC)	≥ 98.0% (chemical purity)
Isotopic Enrichment (MS)	≥ 98 atom % D
Water Content (KF)	≤ 0.5%
Residual Solvents (GC)	Meets ICH guidelines

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.